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Finding the Fourth Proportional to 191,590.74, 287,386.08 and 58,471.68

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Solution

The fourth proportional to 191,590.74, 287,386.08 and 58,471.68 is: 87,707.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,590.74 : 287,386.08 = 58,471.68 : x
  2. Step 2: Convert to fraction form
    191,590.74/287,386.08 = 58,471.68/x
  3. Step 3: Cross multiply
    191,590.74x = 287,386.08 × 58,471.68
  4. Step 4: Simplify right side
    191,590.74x = 16,803,946,906.21
  5. Step 5: Solve for x
    x = 16,803,946,906.21/191,590.74
  6. Step 6: Final answer
    x = 87,707.51

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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.