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Finding the Fourth Proportional to 191,841.40, 287,761.65 and 51,600.16

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Solution

The fourth proportional to 191,841.40, 287,761.65 and 51,600.16 is: 77,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,841.40 : 287,761.65 = 51,600.16 : x
  2. Step 2: Convert to fraction form
    191,841.40/287,761.65 = 51,600.16/x
  3. Step 3: Cross multiply
    191,841.40x = 287,761.65 × 51,600.16
  4. Step 4: Simplify right side
    191,841.40x = 14,848,547,181.86
  5. Step 5: Solve for x
    x = 14,848,547,181.86/191,841.40
  6. Step 6: Final answer
    x = 77,400.12

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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.