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Finding the Fourth Proportional to 59,124.60, 88,686.90 and 45,905.40

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Solution

The fourth proportional to 59,124.60, 88,686.90 and 45,905.40 is: 68,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,124.60 : 88,686.90 = 45,905.40 : x
  2. Step 2: Convert to fraction form
    59,124.60/88,686.90 = 45,905.40/x
  3. Step 3: Cross multiply
    59,124.60x = 88,686.90 × 45,905.40
  4. Step 4: Simplify right side
    59,124.60x = 4,071,207,619.26
  5. Step 5: Solve for x
    x = 4,071,207,619.26/59,124.60
  6. Step 6: Final answer
    x = 68,858.10

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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.