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Finding the Fourth Proportional to 180,598.54, 249,393.51 and 135,197.70

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Solution

The fourth proportional to 180,598.54, 249,393.51 and 135,197.70 is: 186,698.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,598.54 : 249,393.51 = 135,197.70 : x
  2. Step 2: Convert to fraction form
    180,598.54/249,393.51 = 135,197.70/x
  3. Step 3: Cross multiply
    180,598.54x = 249,393.51 × 135,197.70
  4. Step 4: Simplify right side
    180,598.54x = 33,717,428,946.93
  5. Step 5: Solve for x
    x = 33,717,428,946.93/180,598.54
  6. Step 6: Final answer
    x = 186,698.24

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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.