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Finding the Fourth Proportional to 242,149.76, 334,156.56 and 134,724.32

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Solution

The fourth proportional to 242,149.76, 334,156.56 and 134,724.32 is: 185,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,149.76 : 334,156.56 = 134,724.32 : x
  2. Step 2: Convert to fraction form
    242,149.76/334,156.56 = 134,724.32/x
  3. Step 3: Cross multiply
    242,149.76x = 334,156.56 × 134,724.32
  4. Step 4: Simplify right side
    242,149.76x = 45,019,015,319.54
  5. Step 5: Solve for x
    x = 45,019,015,319.54/242,149.76
  6. Step 6: Final answer
    x = 185,913.94

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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.