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Finding the Fourth Proportional to 231,501.65, 348,987.63 and 216,070.49

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Solution

The fourth proportional to 231,501.65, 348,987.63 and 216,070.49 is: 325,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,501.65 : 348,987.63 = 216,070.49 : x
  2. Step 2: Convert to fraction form
    231,501.65/348,987.63 = 216,070.49/x
  3. Step 3: Cross multiply
    231,501.65x = 348,987.63 × 216,070.49
  4. Step 4: Simplify right side
    231,501.65x = 75,405,927,137.69
  5. Step 5: Solve for x
    x = 75,405,927,137.69/231,501.65
  6. Step 6: Final answer
    x = 325,725.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.