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Finding the Fourth Proportional to 357,335.04, 535,920.70 and 213,281.50

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Solution

The fourth proportional to 357,335.04, 535,920.70 and 213,281.50 is: 319,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,335.04 : 535,920.70 = 213,281.50 : x
  2. Step 2: Convert to fraction form
    357,335.04/535,920.70 = 213,281.50/x
  3. Step 3: Cross multiply
    357,335.04x = 535,920.70 × 213,281.50
  4. Step 4: Simplify right side
    357,335.04x = 114,301,970,777.05
  5. Step 5: Solve for x
    x = 114,301,970,777.05/357,335.04
  6. Step 6: Final answer
    x = 319,873.39

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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.