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Finding the Fourth Proportional to 105,133.53, 145,079.20 and 59,807.24

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Solution

The fourth proportional to 105,133.53, 145,079.20 and 59,807.24 is: 82,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,133.53 : 145,079.20 = 59,807.24 : x
  2. Step 2: Convert to fraction form
    105,133.53/145,079.20 = 59,807.24/x
  3. Step 3: Cross multiply
    105,133.53x = 145,079.20 × 59,807.24
  4. Step 4: Simplify right side
    105,133.53x = 8,676,787,242.89
  5. Step 5: Solve for x
    x = 8,676,787,242.89/105,133.53
  6. Step 6: Final answer
    x = 82,531.11

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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.