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Finding the Fourth Proportional to 70,123.59, 105,065.73 and 38,560.14

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Solution

The fourth proportional to 70,123.59, 105,065.73 and 38,560.14 is: 57,774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123.59 : 105,065.73 = 38,560.14 : x
  2. Step 2: Convert to fraction form
    70,123.59/105,065.73 = 38,560.14/x
  3. Step 3: Cross multiply
    70,123.59x = 105,065.73 × 38,560.14
  4. Step 4: Simplify right side
    70,123.59x = 4,051,349,258.00
  5. Step 5: Solve for x
    x = 4,051,349,258.00/70,123.59
  6. Step 6: Final answer
    x = 57,774.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.