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Finding the Fourth Proportional to 249,633.08, 344,492.16 and 136,456.64

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Solution

The fourth proportional to 249,633.08, 344,492.16 and 136,456.64 is: 188,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,633.08 : 344,492.16 = 136,456.64 : x
  2. Step 2: Convert to fraction form
    249,633.08/344,492.16 = 136,456.64/x
  3. Step 3: Cross multiply
    249,633.08x = 344,492.16 × 136,456.64
  4. Step 4: Simplify right side
    249,633.08x = 47,008,242,659.94
  5. Step 5: Solve for x
    x = 47,008,242,659.94/249,633.08
  6. Step 6: Final answer
    x = 188,309.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.