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Finding the Fourth Proportional to 154,552.66, 213,355.71 and 103,598.67

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Solution

The fourth proportional to 154,552.66, 213,355.71 and 103,598.67 is: 143,015.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,552.66 : 213,355.71 = 103,598.67 : x
  2. Step 2: Convert to fraction form
    154,552.66/213,355.71 = 103,598.67/x
  3. Step 3: Cross multiply
    154,552.66x = 213,355.71 × 103,598.67
  4. Step 4: Simplify right side
    154,552.66x = 22,103,367,792.91
  5. Step 5: Solve for x
    x = 22,103,367,792.91/154,552.66
  6. Step 6: Final answer
    x = 143,015.13

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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.