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Finding the Fourth Proportional to 292,352.54, 438,528.82 and 70,736.54

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Solution

The fourth proportional to 292,352.54, 438,528.82 and 70,736.54 is: 106,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,352.54 : 438,528.82 = 70,736.54 : x
  2. Step 2: Convert to fraction form
    292,352.54/438,528.82 = 70,736.54/x
  3. Step 3: Cross multiply
    292,352.54x = 438,528.82 × 70,736.54
  4. Step 4: Simplify right side
    292,352.54x = 31,020,009,047.60
  5. Step 5: Solve for x
    x = 31,020,009,047.60/292,352.54
  6. Step 6: Final answer
    x = 106,104.81

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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.