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Finding the Fourth Proportional to 188,319.48, 282,478.59 and 118,248

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Solution

The fourth proportional to 188,319.48, 282,478.59 and 118,248 is: 177,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,319.48 : 282,478.59 = 118,248 : x
  2. Step 2: Convert to fraction form
    188,319.48/282,478.59 = 118,248/x
  3. Step 3: Cross multiply
    188,319.48x = 282,478.59 × 118,248
  4. Step 4: Simplify right side
    188,319.48x = 33,402,528,310.32
  5. Step 5: Solve for x
    x = 33,402,528,310.32/188,319.48
  6. Step 6: Final answer
    x = 177,371.60

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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.