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Finding the Fourth Proportional to 186,903,587.40, 280,355,381.10 and 186,903,587.40

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Solution

The fourth proportional to 186,903,587.40, 280,355,381.10 and 186,903,587.40 is: 280,355,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,903,587.40 : 280,355,381.10 = 186,903,587.40 : x
  2. Step 2: Convert to fraction form
    186,903,587.40/280,355,381.10 = 186,903,587.40/x
  3. Step 3: Cross multiply
    186,903,587.40x = 280,355,381.10 × 186,903,587.40
  4. Step 4: Simplify right side
    186,903,587.40x = 52,399,426,474,484,168
  5. Step 5: Solve for x
    x = 52,399,426,474,484,168/186,903,587.40
  6. Step 6: Final answer
    x = 280,355,381.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.