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Finding the Fourth Proportional to 98,737.52, 136,255.37 and 56,293.52

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Solution

The fourth proportional to 98,737.52, 136,255.37 and 56,293.52 is: 77,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,737.52 : 136,255.37 = 56,293.52 : x
  2. Step 2: Convert to fraction form
    98,737.52/136,255.37 = 56,293.52/x
  3. Step 3: Cross multiply
    98,737.52x = 136,255.37 × 56,293.52
  4. Step 4: Simplify right side
    98,737.52x = 7,670,293,433.46
  5. Step 5: Solve for x
    x = 7,670,293,433.46/98,737.52
  6. Step 6: Final answer
    x = 77,683.68

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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.