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Finding the Fourth Proportional to 74,602,932.60, 111,871,221.30 and 34,225,793.40

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Solution

The fourth proportional to 74,602,932.60, 111,871,221.30 and 34,225,793.40 is: 51,323,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,602,932.60 : 111,871,221.30 = 34,225,793.40 : x
  2. Step 2: Convert to fraction form
    74,602,932.60/111,871,221.30 = 34,225,793.40/x
  3. Step 3: Cross multiply
    74,602,932.60x = 111,871,221.30 × 34,225,793.40
  4. Step 4: Simplify right side
    74,602,932.60x = 3,828,881,307,619,479
  5. Step 5: Solve for x
    x = 3,828,881,307,619,479/74,602,932.60
  6. Step 6: Final answer
    x = 51,323,469.12

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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.