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Finding the Fourth Proportional to 191,752.20, 287,714.70 and 91,873.80

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Solution

The fourth proportional to 191,752.20, 287,714.70 and 91,873.80 is: 137,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,752.20 : 287,714.70 = 91,873.80 : x
  2. Step 2: Convert to fraction form
    191,752.20/287,714.70 = 91,873.80/x
  3. Step 3: Cross multiply
    191,752.20x = 287,714.70 × 91,873.80
  4. Step 4: Simplify right side
    191,752.20x = 26,433,442,804.86
  5. Step 5: Solve for x
    x = 26,433,442,804.86/191,752.20
  6. Step 6: Final answer
    x = 137,852.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.