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Finding the Fourth Proportional to 153,167.79, 211,149.96 and 101,398.14

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Solution

The fourth proportional to 153,167.79, 211,149.96 and 101,398.14 is: 139,782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,167.79 : 211,149.96 = 101,398.14 : x
  2. Step 2: Convert to fraction form
    153,167.79/211,149.96 = 101,398.14/x
  3. Step 3: Cross multiply
    153,167.79x = 211,149.96 × 101,398.14
  4. Step 4: Simplify right side
    153,167.79x = 21,410,213,205.07
  5. Step 5: Solve for x
    x = 21,410,213,205.07/153,167.79
  6. Step 6: Final answer
    x = 139,782.74

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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.