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Finding the Fourth Proportional to 347,307.50, 520,955.78 and 110,648.58

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Solution

The fourth proportional to 347,307.50, 520,955.78 and 110,648.58 is: 165,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,307.50 : 520,955.78 = 110,648.58 : x
  2. Step 2: Convert to fraction form
    347,307.50/520,955.78 = 110,648.58/x
  3. Step 3: Cross multiply
    347,307.50x = 520,955.78 × 110,648.58
  4. Step 4: Simplify right side
    347,307.50x = 57,643,016,746.55
  5. Step 5: Solve for x
    x = 57,643,016,746.55/347,307.50
  6. Step 6: Final answer
    x = 165,971.13

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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.