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Finding the Fourth Proportional to 124,329.29, 186,656.52 and 73,820.51

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Solution

The fourth proportional to 124,329.29, 186,656.52 and 73,820.51 is: 110,827.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,329.29 : 186,656.52 = 73,820.51 : x
  2. Step 2: Convert to fraction form
    124,329.29/186,656.52 = 73,820.51/x
  3. Step 3: Cross multiply
    124,329.29x = 186,656.52 × 73,820.51
  4. Step 4: Simplify right side
    124,329.29x = 13,779,079,501.23
  5. Step 5: Solve for x
    x = 13,779,079,501.23/124,329.29
  6. Step 6: Final answer
    x = 110,827.30

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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.