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Finding the Fourth Proportional to 72,596,987.60, 108,863,988.60 and 24,056,085.20

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Solution

The fourth proportional to 72,596,987.60, 108,863,988.60 and 24,056,085.20 is: 36,073,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596,987.60 : 108,863,988.60 = 24,056,085.20 : x
  2. Step 2: Convert to fraction form
    72,596,987.60/108,863,988.60 = 24,056,085.20/x
  3. Step 3: Cross multiply
    72,596,987.60x = 108,863,988.60 × 24,056,085.20
  4. Step 4: Simplify right side
    72,596,987.60x = 2,618,841,384,973,428.50
  5. Step 5: Solve for x
    x = 2,618,841,384,973,428.50/72,596,987.60
  6. Step 6: Final answer
    x = 36,073,692.20

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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.