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Finding the Fourth Proportional to 60,499,071.60, 90,748,607.40 and 20,104,306.80

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Solution

The fourth proportional to 60,499,071.60, 90,748,607.40 and 20,104,306.80 is: 30,156,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,499,071.60 : 90,748,607.40 = 20,104,306.80 : x
  2. Step 2: Convert to fraction form
    60,499,071.60/90,748,607.40 = 20,104,306.80/x
  3. Step 3: Cross multiply
    60,499,071.60x = 90,748,607.40 × 20,104,306.80
  4. Step 4: Simplify right side
    60,499,071.60x = 1,824,437,844,842,350.50
  5. Step 5: Solve for x
    x = 1,824,437,844,842,350.50/60,499,071.60
  6. Step 6: Final answer
    x = 30,156,460.20

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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.