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Finding the Fourth Proportional to 186,176.78, 256,920.09 and 101,294.18

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Solution

The fourth proportional to 186,176.78, 256,920.09 and 101,294.18 is: 139,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,176.78 : 256,920.09 = 101,294.18 : x
  2. Step 2: Convert to fraction form
    186,176.78/256,920.09 = 101,294.18/x
  3. Step 3: Cross multiply
    186,176.78x = 256,920.09 × 101,294.18
  4. Step 4: Simplify right side
    186,176.78x = 26,024,509,842.08
  5. Step 5: Solve for x
    x = 26,024,509,842.08/186,176.78
  6. Step 6: Final answer
    x = 139,783.86

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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.