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Finding the Fourth Proportional to 186,442.78, 257,291.50 and 101,560.46

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Solution

The fourth proportional to 186,442.78, 257,291.50 and 101,560.46 is: 140,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,442.78 : 257,291.50 = 101,560.46 : x
  2. Step 2: Convert to fraction form
    186,442.78/257,291.50 = 101,560.46/x
  3. Step 3: Cross multiply
    186,442.78x = 257,291.50 × 101,560.46
  4. Step 4: Simplify right side
    186,442.78x = 26,130,643,094.09
  5. Step 5: Solve for x
    x = 26,130,643,094.09/186,442.78
  6. Step 6: Final answer
    x = 140,153.69

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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.