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Finding the Fourth Proportional to 107,775.78, 148,750.11 and 62,482.74

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Solution

The fourth proportional to 107,775.78, 148,750.11 and 62,482.74 is: 86,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,775.78 : 148,750.11 = 62,482.74 : x
  2. Step 2: Convert to fraction form
    107,775.78/148,750.11 = 62,482.74/x
  3. Step 3: Cross multiply
    107,775.78x = 148,750.11 × 62,482.74
  4. Step 4: Simplify right side
    107,775.78x = 9,294,314,448.10
  5. Step 5: Solve for x
    x = 9,294,314,448.10/107,775.78
  6. Step 6: Final answer
    x = 86,237.51

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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.