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Finding the Fourth Proportional to 153,312.75, 229,969.13 and 42,504.75

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Solution

The fourth proportional to 153,312.75, 229,969.13 and 42,504.75 is: 63,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,312.75 : 229,969.13 = 42,504.75 : x
  2. Step 2: Convert to fraction form
    153,312.75/229,969.13 = 42,504.75/x
  3. Step 3: Cross multiply
    153,312.75x = 229,969.13 × 42,504.75
  4. Step 4: Simplify right side
    153,312.75x = 9,774,780,165.84
  5. Step 5: Solve for x
    x = 9,774,780,165.84/153,312.75
  6. Step 6: Final answer
    x = 63,757.13

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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.