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Finding the Fourth Proportional to 153,016.51, 211,159.99 and 85,032.24

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Solution

The fourth proportional to 153,016.51, 211,159.99 and 85,032.24 is: 117,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,016.51 : 211,159.99 = 85,032.24 : x
  2. Step 2: Convert to fraction form
    153,016.51/211,159.99 = 85,032.24/x
  3. Step 3: Cross multiply
    153,016.51x = 211,159.99 × 85,032.24
  4. Step 4: Simplify right side
    153,016.51x = 17,955,406,948.08
  5. Step 5: Solve for x
    x = 17,955,406,948.08/153,016.51
  6. Step 6: Final answer
    x = 117,342.94

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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.