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Finding the Fourth Proportional to 163,074.72, 224,834.80 and 105,612.51

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Solution

The fourth proportional to 163,074.72, 224,834.80 and 105,612.51 is: 145,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,074.72 : 224,834.80 = 105,612.51 : x
  2. Step 2: Convert to fraction form
    163,074.72/224,834.80 = 105,612.51/x
  3. Step 3: Cross multiply
    163,074.72x = 224,834.80 × 105,612.51
  4. Step 4: Simplify right side
    163,074.72x = 23,745,367,563.35
  5. Step 5: Solve for x
    x = 23,745,367,563.35/163,074.72
  6. Step 6: Final answer
    x = 145,610.35

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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.