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Finding the Fourth Proportional to 74,671.80, 112,104.90 and 59,897.40

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Solution

The fourth proportional to 74,671.80, 112,104.90 and 59,897.40 is: 89,924.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,671.80 : 112,104.90 = 59,897.40 : x
  2. Step 2: Convert to fraction form
    74,671.80/112,104.90 = 59,897.40/x
  3. Step 3: Cross multiply
    74,671.80x = 112,104.90 × 59,897.40
  4. Step 4: Simplify right side
    74,671.80x = 6,714,792,037.26
  5. Step 5: Solve for x
    x = 6,714,792,037.26/74,671.80
  6. Step 6: Final answer
    x = 89,924.07

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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.