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Finding the Fourth Proportional to 101,571.95, 152,382.23 and 42,374.72

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Solution

The fourth proportional to 101,571.95, 152,382.23 and 42,374.72 is: 63,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,571.95 : 152,382.23 = 42,374.72 : x
  2. Step 2: Convert to fraction form
    101,571.95/152,382.23 = 42,374.72/x
  3. Step 3: Cross multiply
    101,571.95x = 152,382.23 × 42,374.72
  4. Step 4: Simplify right side
    101,571.95x = 6,457,154,329.23
  5. Step 5: Solve for x
    x = 6,457,154,329.23/101,571.95
  6. Step 6: Final answer
    x = 63,572.22

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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.