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Finding the Fourth Proportional to 229,188.72, 316,275.54 and 127,208.24

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Solution

The fourth proportional to 229,188.72, 316,275.54 and 127,208.24 is: 175,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,188.72 : 316,275.54 = 127,208.24 : x
  2. Step 2: Convert to fraction form
    229,188.72/316,275.54 = 127,208.24/x
  3. Step 3: Cross multiply
    229,188.72x = 316,275.54 × 127,208.24
  4. Step 4: Simplify right side
    229,188.72x = 40,232,854,798.45
  5. Step 5: Solve for x
    x = 40,232,854,798.45/229,188.72
  6. Step 6: Final answer
    x = 175,544.66

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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.