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Finding the Fourth Proportional to 173,887.70, 260,831.55 and 163,390.10

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Solution

The fourth proportional to 173,887.70, 260,831.55 and 163,390.10 is: 245,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,887.70 : 260,831.55 = 163,390.10 : x
  2. Step 2: Convert to fraction form
    173,887.70/260,831.55 = 163,390.10/x
  3. Step 3: Cross multiply
    173,887.70x = 260,831.55 × 163,390.10
  4. Step 4: Simplify right side
    173,887.70x = 42,617,293,037.66
  5. Step 5: Solve for x
    x = 42,617,293,037.66/173,887.70
  6. Step 6: Final answer
    x = 245,085.15

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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.