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Finding the Fourth Proportional to 74,752,425.60, 112,128,638.40 and 74,752,425.60

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Solution

The fourth proportional to 74,752,425.60, 112,128,638.40 and 74,752,425.60 is: 112,128,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,752,425.60 : 112,128,638.40 = 74,752,425.60 : x
  2. Step 2: Convert to fraction form
    74,752,425.60/112,128,638.40 = 74,752,425.60/x
  3. Step 3: Cross multiply
    74,752,425.60x = 112,128,638.40 × 74,752,425.60
  4. Step 4: Simplify right side
    74,752,425.60x = 8,381,887,699,625,303
  5. Step 5: Solve for x
    x = 8,381,887,699,625,303/74,752,425.60
  6. Step 6: Final answer
    x = 112,128,638.40

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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.