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Finding the Fourth Proportional to 291,707.16, 437,560.74 and 94,715.16

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Solution

The fourth proportional to 291,707.16, 437,560.74 and 94,715.16 is: 142,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,707.16 : 437,560.74 = 94,715.16 : x
  2. Step 2: Convert to fraction form
    291,707.16/437,560.74 = 94,715.16/x
  3. Step 3: Cross multiply
    291,707.16x = 437,560.74 × 94,715.16
  4. Step 4: Simplify right side
    291,707.16x = 41,443,635,498.82
  5. Step 5: Solve for x
    x = 41,443,635,498.82/291,707.16
  6. Step 6: Final answer
    x = 142,072.74

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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.