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Finding the Fourth Proportional to 201,686.90, 302,530.35 and 173,693.30

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Solution

The fourth proportional to 201,686.90, 302,530.35 and 173,693.30 is: 260,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,686.90 : 302,530.35 = 173,693.30 : x
  2. Step 2: Convert to fraction form
    201,686.90/302,530.35 = 173,693.30/x
  3. Step 3: Cross multiply
    201,686.90x = 302,530.35 × 173,693.30
  4. Step 4: Simplify right side
    201,686.90x = 52,547,494,841.66
  5. Step 5: Solve for x
    x = 52,547,494,841.66/201,686.90
  6. Step 6: Final answer
    x = 260,539.95

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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.