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Finding the Fourth Proportional to 216,875.56, 325,811.76 and 153,852.16

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Solution

The fourth proportional to 216,875.56, 325,811.76 and 153,852.16 is: 231,131.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,875.56 : 325,811.76 = 153,852.16 : x
  2. Step 2: Convert to fraction form
    216,875.56/325,811.76 = 153,852.16/x
  3. Step 3: Cross multiply
    216,875.56x = 325,811.76 × 153,852.16
  4. Step 4: Simplify right side
    216,875.56x = 50,126,843,029.40
  5. Step 5: Solve for x
    x = 50,126,843,029.40/216,875.56
  6. Step 6: Final answer
    x = 231,131.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.