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Finding the Fourth Proportional to 173,341.40, 260,012.10 and 145,347.80

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Solution

The fourth proportional to 173,341.40, 260,012.10 and 145,347.80 is: 218,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,341.40 : 260,012.10 = 145,347.80 : x
  2. Step 2: Convert to fraction form
    173,341.40/260,012.10 = 145,347.80/x
  3. Step 3: Cross multiply
    173,341.40x = 260,012.10 × 145,347.80
  4. Step 4: Simplify right side
    173,341.40x = 37,792,186,708.38
  5. Step 5: Solve for x
    x = 37,792,186,708.38/173,341.40
  6. Step 6: Final answer
    x = 218,021.70

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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.