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Finding the Fourth Proportional to 186,201.18, 256,913.88 and 105,610.14

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Solution

The fourth proportional to 186,201.18, 256,913.88 and 105,610.14 is: 145,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,201.18 : 256,913.88 = 105,610.14 : x
  2. Step 2: Convert to fraction form
    186,201.18/256,913.88 = 105,610.14/x
  3. Step 3: Cross multiply
    186,201.18x = 256,913.88 × 105,610.14
  4. Step 4: Simplify right side
    186,201.18x = 27,132,710,834.74
  5. Step 5: Solve for x
    x = 27,132,710,834.74/186,201.18
  6. Step 6: Final answer
    x = 145,717.18

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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.