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Finding the Fourth Proportional to 553,308.63, 829,958.28 and 153,948.25

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Solution

The fourth proportional to 553,308.63, 829,958.28 and 153,948.25 is: 230,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,308.63 : 829,958.28 = 153,948.25 : x
  2. Step 2: Convert to fraction form
    553,308.63/829,958.28 = 153,948.25/x
  3. Step 3: Cross multiply
    553,308.63x = 829,958.28 × 153,948.25
  4. Step 4: Simplify right side
    553,308.63x = 127,770,624,779.01
  5. Step 5: Solve for x
    x = 127,770,624,779.01/553,308.63
  6. Step 6: Final answer
    x = 230,921.08

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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.