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Finding the Fourth Proportional to 58,754.70, 88,145.35 and 19,312.16

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Solution

The fourth proportional to 58,754.70, 88,145.35 and 19,312.16 is: 28,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,754.70 : 88,145.35 = 19,312.16 : x
  2. Step 2: Convert to fraction form
    58,754.70/88,145.35 = 19,312.16/x
  3. Step 3: Cross multiply
    58,754.70x = 88,145.35 × 19,312.16
  4. Step 4: Simplify right side
    58,754.70x = 1,702,276,613.45
  5. Step 5: Solve for x
    x = 1,702,276,613.45/58,754.70
  6. Step 6: Final answer
    x = 28,972.60

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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.