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Finding the Fourth Proportional to 58,472,615.70, 87,708,923.55 and 40,332,762.90

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Solution

The fourth proportional to 58,472,615.70, 87,708,923.55 and 40,332,762.90 is: 60,499,144.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472,615.70 : 87,708,923.55 = 40,332,762.90 : x
  2. Step 2: Convert to fraction form
    58,472,615.70/87,708,923.55 = 40,332,762.90/x
  3. Step 3: Cross multiply
    58,472,615.70x = 87,708,923.55 × 40,332,762.90
  4. Step 4: Simplify right side
    58,472,615.70x = 3,537,543,217,756,376
  5. Step 5: Solve for x
    x = 3,537,543,217,756,376/58,472,615.70
  6. Step 6: Final answer
    x = 60,499,144.35

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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.