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Finding the Fourth Proportional to 127,124.88, 175,440.72 and 73,412.16

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Solution

The fourth proportional to 127,124.88, 175,440.72 and 73,412.16 is: 101,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,124.88 : 175,440.72 = 73,412.16 : x
  2. Step 2: Convert to fraction form
    127,124.88/175,440.72 = 73,412.16/x
  3. Step 3: Cross multiply
    127,124.88x = 175,440.72 × 73,412.16
  4. Step 4: Simplify right side
    127,124.88x = 12,879,482,207.16
  5. Step 5: Solve for x
    x = 12,879,482,207.16/127,124.88
  6. Step 6: Final answer
    x = 101,313.62

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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.