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Finding the Fourth Proportional to 189,918,207.60, 266,490,152.40 and 189,918,207.60

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Solution

The fourth proportional to 189,918,207.60, 266,490,152.40 and 189,918,207.60 is: 266,490,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,918,207.60 : 266,490,152.40 = 189,918,207.60 : x
  2. Step 2: Convert to fraction form
    189,918,207.60/266,490,152.40 = 189,918,207.60/x
  3. Step 3: Cross multiply
    189,918,207.60x = 266,490,152.40 × 189,918,207.60
  4. Step 4: Simplify right side
    189,918,207.60x = 50,611,332,086,858,840
  5. Step 5: Solve for x
    x = 50,611,332,086,858,840/189,918,207.60
  6. Step 6: Final answer
    x = 266,490,152.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.