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Finding the Fourth Proportional to 225,032.88, 310,224.96 and 153,321.12

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Solution

The fourth proportional to 225,032.88, 310,224.96 and 153,321.12 is: 211,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,032.88 : 310,224.96 = 153,321.12 : x
  2. Step 2: Convert to fraction form
    225,032.88/310,224.96 = 153,321.12/x
  3. Step 3: Cross multiply
    225,032.88x = 310,224.96 × 153,321.12
  4. Step 4: Simplify right side
    225,032.88x = 47,564,038,319.16
  5. Step 5: Solve for x
    x = 47,564,038,319.16/225,032.88
  6. Step 6: Final answer
    x = 211,364.84

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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.