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Finding the Fourth Proportional to 113,353.63, 156,424.77 and 61,669.10

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Solution

The fourth proportional to 113,353.63, 156,424.77 and 61,669.10 is: 85,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,353.63 : 156,424.77 = 61,669.10 : x
  2. Step 2: Convert to fraction form
    113,353.63/156,424.77 = 61,669.10/x
  3. Step 3: Cross multiply
    113,353.63x = 156,424.77 × 61,669.10
  4. Step 4: Simplify right side
    113,353.63x = 9,646,574,475.26
  5. Step 5: Solve for x
    x = 9,646,574,475.26/113,353.63
  6. Step 6: Final answer
    x = 85,101.59

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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.