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Finding the Fourth Proportional to 173,689.40, 260,534.10 and 55,369.40

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Solution

The fourth proportional to 173,689.40, 260,534.10 and 55,369.40 is: 83,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,689.40 : 260,534.10 = 55,369.40 : x
  2. Step 2: Convert to fraction form
    173,689.40/260,534.10 = 55,369.40/x
  3. Step 3: Cross multiply
    173,689.40x = 260,534.10 × 55,369.40
  4. Step 4: Simplify right side
    173,689.40x = 14,425,616,796.54
  5. Step 5: Solve for x
    x = 14,425,616,796.54/173,689.40
  6. Step 6: Final answer
    x = 83,054.10

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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.