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Finding the Fourth Proportional to 255,445.56, 352,514.70 and 148,077.90

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Solution

The fourth proportional to 255,445.56, 352,514.70 and 148,077.90 is: 204,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,445.56 : 352,514.70 = 148,077.90 : x
  2. Step 2: Convert to fraction form
    255,445.56/352,514.70 = 148,077.90/x
  3. Step 3: Cross multiply
    255,445.56x = 352,514.70 × 148,077.90
  4. Step 4: Simplify right side
    255,445.56x = 52,199,636,495.13
  5. Step 5: Solve for x
    x = 52,199,636,495.13/255,445.56
  6. Step 6: Final answer
    x = 204,347.40

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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.