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Finding the Fourth Proportional to 141,799.71, 212,703.69 and 53,036.28

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Solution

The fourth proportional to 141,799.71, 212,703.69 and 53,036.28 is: 79,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,799.71 : 212,703.69 = 53,036.28 : x
  2. Step 2: Convert to fraction form
    141,799.71/212,703.69 = 53,036.28/x
  3. Step 3: Cross multiply
    141,799.71x = 212,703.69 × 53,036.28
  4. Step 4: Simplify right side
    141,799.71x = 11,281,012,459.87
  5. Step 5: Solve for x
    x = 11,281,012,459.87/141,799.71
  6. Step 6: Final answer
    x = 79,555.96

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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.