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Finding the Fourth Proportional to 173,778.64, 260,663.40 and 55,457.20

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Solution

The fourth proportional to 173,778.64, 260,663.40 and 55,457.20 is: 83,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,778.64 : 260,663.40 = 55,457.20 : x
  2. Step 2: Convert to fraction form
    173,778.64/260,663.40 = 55,457.20/x
  3. Step 3: Cross multiply
    173,778.64x = 260,663.40 × 55,457.20
  4. Step 4: Simplify right side
    173,778.64x = 14,455,662,306.48
  5. Step 5: Solve for x
    x = 14,455,662,306.48/173,778.64
  6. Step 6: Final answer
    x = 83,184.34

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1.5x scale

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.