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Finding the Fourth Proportional to 180,991.16, 249,683.80 and 112,964.12

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Solution

The fourth proportional to 180,991.16, 249,683.80 and 112,964.12 is: 155,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,991.16 : 249,683.80 = 112,964.12 : x
  2. Step 2: Convert to fraction form
    180,991.16/249,683.80 = 112,964.12/x
  3. Step 3: Cross multiply
    180,991.16x = 249,683.80 × 112,964.12
  4. Step 4: Simplify right side
    180,991.16x = 28,205,310,745.26
  5. Step 5: Solve for x
    x = 28,205,310,745.26/180,991.16
  6. Step 6: Final answer
    x = 155,838.06

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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.