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Finding the Fourth Proportional to 161,886.66, 223,404.80 and 90,271.32

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Solution

The fourth proportional to 161,886.66, 223,404.80 and 90,271.32 is: 124,575.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,886.66 : 223,404.80 = 90,271.32 : x
  2. Step 2: Convert to fraction form
    161,886.66/223,404.80 = 90,271.32/x
  3. Step 3: Cross multiply
    161,886.66x = 223,404.80 × 90,271.32
  4. Step 4: Simplify right side
    161,886.66x = 20,167,045,738.98
  5. Step 5: Solve for x
    x = 20,167,045,738.98/161,886.66
  6. Step 6: Final answer
    x = 124,575.09

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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.