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Finding the Fourth Proportional to 163,809.60, 245,714.40 and 97,215.45

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Solution

The fourth proportional to 163,809.60, 245,714.40 and 97,215.45 is: 145,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,809.60 : 245,714.40 = 97,215.45 : x
  2. Step 2: Convert to fraction form
    163,809.60/245,714.40 = 97,215.45/x
  3. Step 3: Cross multiply
    163,809.60x = 245,714.40 × 97,215.45
  4. Step 4: Simplify right side
    163,809.60x = 23,887,235,967.48
  5. Step 5: Solve for x
    x = 23,887,235,967.48/163,809.60
  6. Step 6: Final answer
    x = 145,823.18

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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.