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Finding the Fourth Proportional to 107,486.67, 148,328.34 and 61,544.76

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Solution

The fourth proportional to 107,486.67, 148,328.34 and 61,544.76 is: 84,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,486.67 : 148,328.34 = 61,544.76 : x
  2. Step 2: Convert to fraction form
    107,486.67/148,328.34 = 61,544.76/x
  3. Step 3: Cross multiply
    107,486.67x = 148,328.34 × 61,544.76
  4. Step 4: Simplify right side
    107,486.67x = 9,128,832,086.50
  5. Step 5: Solve for x
    x = 9,128,832,086.50/107,486.67
  6. Step 6: Final answer
    x = 84,929.90

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1.5x scale

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.