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Finding the Fourth Proportional to 151,595.66, 209,203.62 and 83,615.60

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Solution

The fourth proportional to 151,595.66, 209,203.62 and 83,615.60 is: 115,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,595.66 : 209,203.62 = 83,615.60 : x
  2. Step 2: Convert to fraction form
    151,595.66/209,203.62 = 83,615.60/x
  3. Step 3: Cross multiply
    151,595.66x = 209,203.62 × 83,615.60
  4. Step 4: Simplify right side
    151,595.66x = 17,492,686,208.47
  5. Step 5: Solve for x
    x = 17,492,686,208.47/151,595.66
  6. Step 6: Final answer
    x = 115,390.42

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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.