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Finding the Fourth Proportional to 371,767.84, 556,903.32 and 171,812.86

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Solution

The fourth proportional to 371,767.84, 556,903.32 and 171,812.86 is: 257,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,767.84 : 556,903.32 = 171,812.86 : x
  2. Step 2: Convert to fraction form
    371,767.84/556,903.32 = 171,812.86/x
  3. Step 3: Cross multiply
    371,767.84x = 556,903.32 × 171,812.86
  4. Step 4: Simplify right side
    371,767.84x = 95,683,152,152.70
  5. Step 5: Solve for x
    x = 95,683,152,152.70/371,767.84
  6. Step 6: Final answer
    x = 257,373.40

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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.