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Finding the Fourth Proportional to 124,420.98, 186,703.65 and 52,368.51

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Solution

The fourth proportional to 124,420.98, 186,703.65 and 52,368.51 is: 78,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,420.98 : 186,703.65 = 52,368.51 : x
  2. Step 2: Convert to fraction form
    124,420.98/186,703.65 = 52,368.51/x
  3. Step 3: Cross multiply
    124,420.98x = 186,703.65 × 52,368.51
  4. Step 4: Simplify right side
    124,420.98x = 9,777,391,962.06
  5. Step 5: Solve for x
    x = 9,777,391,962.06/124,420.98
  6. Step 6: Final answer
    x = 78,583.15

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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.