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Finding the Fourth Proportional to 112,880.40, 157,825.20 and 112,880.40

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Solution

The fourth proportional to 112,880.40, 157,825.20 and 112,880.40 is: 157,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,880.40 : 157,825.20 = 112,880.40 : x
  2. Step 2: Convert to fraction form
    112,880.40/157,825.20 = 112,880.40/x
  3. Step 3: Cross multiply
    112,880.40x = 157,825.20 × 112,880.40
  4. Step 4: Simplify right side
    112,880.40x = 17,815,371,706.08
  5. Step 5: Solve for x
    x = 17,815,371,706.08/112,880.40
  6. Step 6: Final answer
    x = 157,825.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.