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Finding the Fourth Proportional to 228,011.22, 314,649.36 and 124,641.32

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Solution

The fourth proportional to 228,011.22, 314,649.36 and 124,641.32 is: 172,001.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,011.22 : 314,649.36 = 124,641.32 : x
  2. Step 2: Convert to fraction form
    228,011.22/314,649.36 = 124,641.32/x
  3. Step 3: Cross multiply
    228,011.22x = 314,649.36 × 124,641.32
  4. Step 4: Simplify right side
    228,011.22x = 39,218,309,994.31
  5. Step 5: Solve for x
    x = 39,218,309,994.31/228,011.22
  6. Step 6: Final answer
    x = 172,001.67

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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.