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Finding the Fourth Proportional to 229,298.66, 316,427.70 and 127,318.82

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Solution

The fourth proportional to 229,298.66, 316,427.70 and 127,318.82 is: 175,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,298.66 : 316,427.70 = 127,318.82 : x
  2. Step 2: Convert to fraction form
    229,298.66/316,427.70 = 127,318.82/x
  3. Step 3: Cross multiply
    229,298.66x = 316,427.70 × 127,318.82
  4. Step 4: Simplify right side
    229,298.66x = 40,287,201,379.31
  5. Step 5: Solve for x
    x = 40,287,201,379.31/229,298.66
  6. Step 6: Final answer
    x = 175,697.50

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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.