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Finding the Fourth Proportional to 292,353.54, 438,530.32 and 70,737.54

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Solution

The fourth proportional to 292,353.54, 438,530.32 and 70,737.54 is: 106,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,353.54 : 438,530.32 = 70,737.54 : x
  2. Step 2: Convert to fraction form
    292,353.54/438,530.32 = 70,737.54/x
  3. Step 3: Cross multiply
    292,353.54x = 438,530.32 × 70,737.54
  4. Step 4: Simplify right side
    292,353.54x = 31,020,556,052.21
  5. Step 5: Solve for x
    x = 31,020,556,052.21/292,353.54
  6. Step 6: Final answer
    x = 106,106.31

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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.