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Finding the Fourth Proportional to 229,666.71, 316,950.60 and 127,702.64

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Solution

The fourth proportional to 229,666.71, 316,950.60 and 127,702.64 is: 176,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,666.71 : 316,950.60 = 127,702.64 : x
  2. Step 2: Convert to fraction form
    229,666.71/316,950.60 = 127,702.64/x
  3. Step 3: Cross multiply
    229,666.71x = 316,950.60 × 127,702.64
  4. Step 4: Simplify right side
    229,666.71x = 40,475,426,784.83
  5. Step 5: Solve for x
    x = 40,475,426,784.83/229,666.71
  6. Step 6: Final answer
    x = 176,235.50

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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.