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Finding the Fourth Proportional to 124,657.92, 186,989.76 and 35,913.60

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Solution

The fourth proportional to 124,657.92, 186,989.76 and 35,913.60 is: 53,871.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,657.92 : 186,989.76 = 35,913.60 : x
  2. Step 2: Convert to fraction form
    124,657.92/186,989.76 = 35,913.60/x
  3. Step 3: Cross multiply
    124,657.92x = 186,989.76 × 35,913.60
  4. Step 4: Simplify right side
    124,657.92x = 6,715,475,444.74
  5. Step 5: Solve for x
    x = 6,715,475,444.74/124,657.92
  6. Step 6: Final answer
    x = 53,871.23

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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.