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Finding the Fourth Proportional to 105,030.48, 157,542.48 and 26,144.64

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Solution

The fourth proportional to 105,030.48, 157,542.48 and 26,144.64 is: 39,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,030.48 : 157,542.48 = 26,144.64 : x
  2. Step 2: Convert to fraction form
    105,030.48/157,542.48 = 26,144.64/x
  3. Step 3: Cross multiply
    105,030.48x = 157,542.48 × 26,144.64
  4. Step 4: Simplify right side
    105,030.48x = 4,118,891,424.31
  5. Step 5: Solve for x
    x = 4,118,891,424.31/105,030.48
  6. Step 6: Final answer
    x = 39,216.15

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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.