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Finding the Fourth Proportional to 354,588.79, 531,886.80 and 101,868.64

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Solution

The fourth proportional to 354,588.79, 531,886.80 and 101,868.64 is: 152,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,588.79 : 531,886.80 = 101,868.64 : x
  2. Step 2: Convert to fraction form
    354,588.79/531,886.80 = 101,868.64/x
  3. Step 3: Cross multiply
    354,588.79x = 531,886.80 × 101,868.64
  4. Step 4: Simplify right side
    354,588.79x = 54,182,584,002.24
  5. Step 5: Solve for x
    x = 54,182,584,002.24/354,588.79
  6. Step 6: Final answer
    x = 152,804.00

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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.