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Finding the Fourth Proportional to 157,618.90, 217,514.01 and 101,030.23

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Solution

The fourth proportional to 157,618.90, 217,514.01 and 101,030.23 is: 139,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,618.90 : 217,514.01 = 101,030.23 : x
  2. Step 2: Convert to fraction form
    157,618.90/217,514.01 = 101,030.23/x
  3. Step 3: Cross multiply
    157,618.90x = 217,514.01 × 101,030.23
  4. Step 4: Simplify right side
    157,618.90x = 21,975,490,458.52
  5. Step 5: Solve for x
    x = 21,975,490,458.52/157,618.90
  6. Step 6: Final answer
    x = 139,421.67

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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.