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Finding the Fourth Proportional to 144,814.72, 217,339.44 and 74,714.08

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Solution

The fourth proportional to 144,814.72, 217,339.44 and 74,714.08 is: 112,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,814.72 : 217,339.44 = 74,714.08 : x
  2. Step 2: Convert to fraction form
    144,814.72/217,339.44 = 74,714.08/x
  3. Step 3: Cross multiply
    144,814.72x = 217,339.44 × 74,714.08
  4. Step 4: Simplify right side
    144,814.72x = 16,238,316,307.32
  5. Step 5: Solve for x
    x = 16,238,316,307.32/144,814.72
  6. Step 6: Final answer
    x = 112,131.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.