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Finding the Fourth Proportional to 356,675.47, 535,008.75 and 86,805.16

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Solution

The fourth proportional to 356,675.47, 535,008.75 and 86,805.16 is: 130,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,675.47 : 535,008.75 = 86,805.16 : x
  2. Step 2: Convert to fraction form
    356,675.47/535,008.75 = 86,805.16/x
  3. Step 3: Cross multiply
    356,675.47x = 535,008.75 × 86,805.16
  4. Step 4: Simplify right side
    356,675.47x = 46,441,520,145.15
  5. Step 5: Solve for x
    x = 46,441,520,145.15/356,675.47
  6. Step 6: Final answer
    x = 130,206.66

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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.