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Finding the Fourth Proportional to 191,699.36, 287,449.68 and 58,552.64

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Solution

The fourth proportional to 191,699.36, 287,449.68 and 58,552.64 is: 87,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,699.36 : 287,449.68 = 58,552.64 : x
  2. Step 2: Convert to fraction form
    191,699.36/287,449.68 = 58,552.64/x
  3. Step 3: Cross multiply
    191,699.36x = 287,449.68 × 58,552.64
  4. Step 4: Simplify right side
    191,699.36x = 16,830,937,631.16
  5. Step 5: Solve for x
    x = 16,830,937,631.16/191,699.36
  6. Step 6: Final answer
    x = 87,798.61

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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.