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Finding the Fourth Proportional to 193,487.80, 267,068.82 and 117,007

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Solution

The fourth proportional to 193,487.80, 267,068.82 and 117,007 is: 161,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,487.80 : 267,068.82 = 117,007 : x
  2. Step 2: Convert to fraction form
    193,487.80/267,068.82 = 117,007/x
  3. Step 3: Cross multiply
    193,487.80x = 267,068.82 × 117,007
  4. Step 4: Simplify right side
    193,487.80x = 31,248,921,421.74
  5. Step 5: Solve for x
    x = 31,248,921,421.74/193,487.80
  6. Step 6: Final answer
    x = 161,503.32

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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.