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Finding the Fourth Proportional to 134,153.80, 185,128.68 and 73,724.32

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Solution

The fourth proportional to 134,153.80, 185,128.68 and 73,724.32 is: 101,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,153.80 : 185,128.68 = 73,724.32 : x
  2. Step 2: Convert to fraction form
    134,153.80/185,128.68 = 73,724.32/x
  3. Step 3: Cross multiply
    134,153.80x = 185,128.68 × 73,724.32
  4. Step 4: Simplify right side
    134,153.80x = 13,648,486,045.50
  5. Step 5: Solve for x
    x = 13,648,486,045.50/134,153.80
  6. Step 6: Final answer
    x = 101,737.60

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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.