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Finding the Fourth Proportional to 266,690.49, 368,002.63 and 157,798.17

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Solution

The fourth proportional to 266,690.49, 368,002.63 and 157,798.17 is: 217,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,690.49 : 368,002.63 = 157,798.17 : x
  2. Step 2: Convert to fraction form
    266,690.49/368,002.63 = 157,798.17/x
  3. Step 3: Cross multiply
    266,690.49x = 368,002.63 × 157,798.17
  4. Step 4: Simplify right side
    266,690.49x = 58,070,141,569.19
  5. Step 5: Solve for x
    x = 58,070,141,569.19/266,690.49
  6. Step 6: Final answer
    x = 217,743.58

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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.