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Finding the Fourth Proportional to 103,254.98, 142,541.94 and 69,251.06

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Solution

The fourth proportional to 103,254.98, 142,541.94 and 69,251.06 is: 95,600.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,254.98 : 142,541.94 = 69,251.06 : x
  2. Step 2: Convert to fraction form
    103,254.98/142,541.94 = 69,251.06/x
  3. Step 3: Cross multiply
    103,254.98x = 142,541.94 × 69,251.06
  4. Step 4: Simplify right side
    103,254.98x = 9,871,180,439.46
  5. Step 5: Solve for x
    x = 9,871,180,439.46/103,254.98
  6. Step 6: Final answer
    x = 95,600.04

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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.