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Finding the Fourth Proportional to 249,503.63, 344,315.00 and 136,326.38

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Solution

The fourth proportional to 249,503.63, 344,315.00 and 136,326.38 is: 188,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,503.63 : 344,315.00 = 136,326.38 : x
  2. Step 2: Convert to fraction form
    249,503.63/344,315.00 = 136,326.38/x
  3. Step 3: Cross multiply
    249,503.63x = 344,315.00 × 136,326.38
  4. Step 4: Simplify right side
    249,503.63x = 46,939,216,148.94
  5. Step 5: Solve for x
    x = 46,939,216,148.94/249,503.63
  6. Step 6: Final answer
    x = 188,130.40

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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.