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Finding the Fourth Proportional to 60,371,999.80, 90,557,999.70 and 56,120,471.80

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Solution

The fourth proportional to 60,371,999.80, 90,557,999.70 and 56,120,471.80 is: 84,180,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,371,999.80 : 90,557,999.70 = 56,120,471.80 : x
  2. Step 2: Convert to fraction form
    60,371,999.80/90,557,999.70 = 56,120,471.80/x
  3. Step 3: Cross multiply
    60,371,999.80x = 90,557,999.70 × 56,120,471.80
  4. Step 4: Simplify right side
    60,371,999.80x = 5,082,157,668,428,258
  5. Step 5: Solve for x
    x = 5,082,157,668,428,258/60,371,999.80
  6. Step 6: Final answer
    x = 84,180,707.70

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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.