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Finding the Fourth Proportional to 97,141.60, 134,058.72 and 56,859.12

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Solution

The fourth proportional to 97,141.60, 134,058.72 and 56,859.12 is: 78,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,141.60 : 134,058.72 = 56,859.12 : x
  2. Step 2: Convert to fraction form
    97,141.60/134,058.72 = 56,859.12/x
  3. Step 3: Cross multiply
    97,141.60x = 134,058.72 × 56,859.12
  4. Step 4: Simplify right side
    97,141.60x = 7,622,460,847.53
  5. Step 5: Solve for x
    x = 7,622,460,847.53/97,141.60
  6. Step 6: Final answer
    x = 78,467.52

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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.