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Finding the Fourth Proportional to 292,803.58, 439,200.76 and 93,121.08

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Solution

The fourth proportional to 292,803.58, 439,200.76 and 93,121.08 is: 139,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,803.58 : 439,200.76 = 93,121.08 : x
  2. Step 2: Convert to fraction form
    292,803.58/439,200.76 = 93,121.08/x
  3. Step 3: Cross multiply
    292,803.58x = 439,200.76 × 93,121.08
  4. Step 4: Simplify right side
    292,803.58x = 40,898,848,642.42
  5. Step 5: Solve for x
    x = 40,898,848,642.42/292,803.58
  6. Step 6: Final answer
    x = 139,680.15

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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.