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Finding the Fourth Proportional to 188,575.48, 260,159.80 and 107,959.40

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Solution

The fourth proportional to 188,575.48, 260,159.80 and 107,959.40 is: 148,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,575.48 : 260,159.80 = 107,959.40 : x
  2. Step 2: Convert to fraction form
    188,575.48/260,159.80 = 107,959.40/x
  3. Step 3: Cross multiply
    188,575.48x = 260,159.80 × 107,959.40
  4. Step 4: Simplify right side
    188,575.48x = 28,086,695,912.12
  5. Step 5: Solve for x
    x = 28,086,695,912.12/188,575.48
  6. Step 6: Final answer
    x = 148,941.40

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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.