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Finding the Fourth Proportional to 97,118.70, 134,023.77 and 56,840.13

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Solution

The fourth proportional to 97,118.70, 134,023.77 and 56,840.13 is: 78,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,118.70 : 134,023.77 = 56,840.13 : x
  2. Step 2: Convert to fraction form
    97,118.70/134,023.77 = 56,840.13/x
  3. Step 3: Cross multiply
    97,118.70x = 134,023.77 × 56,840.13
  4. Step 4: Simplify right side
    97,118.70x = 7,617,928,509.89
  5. Step 5: Solve for x
    x = 7,617,928,509.89/97,118.70
  6. Step 6: Final answer
    x = 78,439.36

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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.