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Finding the Fourth Proportional to 249,784.50, 344,702.88 and 136,607.52

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Solution

The fourth proportional to 249,784.50, 344,702.88 and 136,607.52 is: 188,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,784.50 : 344,702.88 = 136,607.52 : x
  2. Step 2: Convert to fraction form
    249,784.50/344,702.88 = 136,607.52/x
  3. Step 3: Cross multiply
    249,784.50x = 344,702.88 × 136,607.52
  4. Step 4: Simplify right side
    249,784.50x = 47,089,005,573.66
  5. Step 5: Solve for x
    x = 47,089,005,573.66/249,784.50
  6. Step 6: Final answer
    x = 188,518.53

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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.