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Finding the Fourth Proportional to 77,587.92, 107,075.91 and 58,433.91

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Solution

The fourth proportional to 77,587.92, 107,075.91 and 58,433.91 is: 80,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,587.92 : 107,075.91 = 58,433.91 : x
  2. Step 2: Convert to fraction form
    77,587.92/107,075.91 = 58,433.91/x
  3. Step 3: Cross multiply
    77,587.92x = 107,075.91 × 58,433.91
  4. Step 4: Simplify right side
    77,587.92x = 6,256,864,088.11
  5. Step 5: Solve for x
    x = 6,256,864,088.11/77,587.92
  6. Step 6: Final answer
    x = 80,642.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.