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Finding the Fourth Proportional to 141,810.65, 212,752.87 and 53,071.01

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Solution

The fourth proportional to 141,810.65, 212,752.87 and 53,071.01 is: 79,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,810.65 : 212,752.87 = 53,071.01 : x
  2. Step 2: Convert to fraction form
    141,810.65/212,752.87 = 53,071.01/x
  3. Step 3: Cross multiply
    141,810.65x = 212,752.87 × 53,071.01
  4. Step 4: Simplify right side
    141,810.65x = 11,291,008,627.53
  5. Step 5: Solve for x
    x = 11,291,008,627.53/141,810.65
  6. Step 6: Final answer
    x = 79,620.32

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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.