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Finding the Fourth Proportional to 288,021.61, 432,032.63 and 98,483.41

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Solution

The fourth proportional to 288,021.61, 432,032.63 and 98,483.41 is: 147,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,021.61 : 432,032.63 = 98,483.41 : x
  2. Step 2: Convert to fraction form
    288,021.61/432,032.63 = 98,483.41/x
  3. Step 3: Cross multiply
    288,021.61x = 432,032.63 × 98,483.41
  4. Step 4: Simplify right side
    288,021.61x = 42,548,043,981.09
  5. Step 5: Solve for x
    x = 42,548,043,981.09/288,021.61
  6. Step 6: Final answer
    x = 147,725.18

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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.