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Finding the Fourth Proportional to 208,392.50, 287,587.53 and 117,752.30

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Solution

The fourth proportional to 208,392.50, 287,587.53 and 117,752.30 is: 162,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,392.50 : 287,587.53 = 117,752.30 : x
  2. Step 2: Convert to fraction form
    208,392.50/287,587.53 = 117,752.30/x
  3. Step 3: Cross multiply
    208,392.50x = 287,587.53 × 117,752.30
  4. Step 4: Simplify right side
    208,392.50x = 33,864,093,108.82
  5. Step 5: Solve for x
    x = 33,864,093,108.82/208,392.50
  6. Step 6: Final answer
    x = 162,501.50

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1.5x scale

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.