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Finding the Fourth Proportional to 162,328.87, 224,009.54 and 90,709.48

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Solution

The fourth proportional to 162,328.87, 224,009.54 and 90,709.48 is: 125,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,328.87 : 224,009.54 = 90,709.48 : x
  2. Step 2: Convert to fraction form
    162,328.87/224,009.54 = 90,709.48/x
  3. Step 3: Cross multiply
    162,328.87x = 224,009.54 × 90,709.48
  4. Step 4: Simplify right side
    162,328.87x = 20,319,788,888.44
  5. Step 5: Solve for x
    x = 20,319,788,888.44/162,328.87
  6. Step 6: Final answer
    x = 125,176.68

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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.