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Finding the Fourth Proportional to 99,334.48, 148,657.99 and 61,368.16

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Solution

The fourth proportional to 99,334.48, 148,657.99 and 61,368.16 is: 91,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,334.48 : 148,657.99 = 61,368.16 : x
  2. Step 2: Convert to fraction form
    99,334.48/148,657.99 = 61,368.16/x
  3. Step 3: Cross multiply
    99,334.48x = 148,657.99 × 61,368.16
  4. Step 4: Simplify right side
    99,334.48x = 9,122,867,315.60
  5. Step 5: Solve for x
    x = 9,122,867,315.60/99,334.48
  6. Step 6: Final answer
    x = 91,839.89

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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.