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Finding the Fourth Proportional to 88,124.68, 121,614.78 and 50,411.08

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Solution

The fourth proportional to 88,124.68, 121,614.78 and 50,411.08 is: 69,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,124.68 : 121,614.78 = 50,411.08 : x
  2. Step 2: Convert to fraction form
    88,124.68/121,614.78 = 50,411.08/x
  3. Step 3: Cross multiply
    88,124.68x = 121,614.78 × 50,411.08
  4. Step 4: Simplify right side
    88,124.68x = 6,130,732,403.76
  5. Step 5: Solve for x
    x = 6,130,732,403.76/88,124.68
  6. Step 6: Final answer
    x = 69,568.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.