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Finding the Fourth Proportional to 110,737.45, 152,764.55 and 72,480.16

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Solution

The fourth proportional to 110,737.45, 152,764.55 and 72,480.16 is: 99,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,737.45 : 152,764.55 = 72,480.16 : x
  2. Step 2: Convert to fraction form
    110,737.45/152,764.55 = 72,480.16/x
  3. Step 3: Cross multiply
    110,737.45x = 152,764.55 × 72,480.16
  4. Step 4: Simplify right side
    110,737.45x = 11,072,398,663.93
  5. Step 5: Solve for x
    x = 11,072,398,663.93/110,737.45
  6. Step 6: Final answer
    x = 99,987.84

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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.