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Finding the Fourth Proportional to 107,798.34, 148,763.26 and 62,479.46

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Solution

The fourth proportional to 107,798.34, 148,763.26 and 62,479.46 is: 86,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,798.34 : 148,763.26 = 62,479.46 : x
  2. Step 2: Convert to fraction form
    107,798.34/148,763.26 = 62,479.46/x
  3. Step 3: Cross multiply
    107,798.34x = 148,763.26 × 62,479.46
  4. Step 4: Simplify right side
    107,798.34x = 9,294,648,152.64
  5. Step 5: Solve for x
    x = 9,294,648,152.64/107,798.34
  6. Step 6: Final answer
    x = 86,222.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.