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Finding the Fourth Proportional to 98,885.86, 136,461.66 and 53,562.79

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Solution

The fourth proportional to 98,885.86, 136,461.66 and 53,562.79 is: 73,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,885.86 : 136,461.66 = 53,562.79 : x
  2. Step 2: Convert to fraction form
    98,885.86/136,461.66 = 53,562.79/x
  3. Step 3: Cross multiply
    98,885.86x = 136,461.66 × 53,562.79
  4. Step 4: Simplify right side
    98,885.86x = 7,309,267,237.63
  5. Step 5: Solve for x
    x = 7,309,267,237.63/98,885.86
  6. Step 6: Final answer
    x = 73,916.20

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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.