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Finding the Fourth Proportional to 74,887,715.60, 112,331,573.40 and 74,887,715.60

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Solution

The fourth proportional to 74,887,715.60, 112,331,573.40 and 74,887,715.60 is: 112,331,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,715.60 : 112,331,573.40 = 74,887,715.60 : x
  2. Step 2: Convert to fraction form
    74,887,715.60/112,331,573.40 = 74,887,715.60/x
  3. Step 3: Cross multiply
    74,887,715.60x = 112,331,573.40 × 74,887,715.60
  4. Step 4: Simplify right side
    74,887,715.60x = 8,412,254,921,679,725
  5. Step 5: Solve for x
    x = 8,412,254,921,679,725/74,887,715.60
  6. Step 6: Final answer
    x = 112,331,573.40

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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.