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Finding the Fourth Proportional to 282,028.80, 423,140.40 and 124,370.40

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Solution

The fourth proportional to 282,028.80, 423,140.40 and 124,370.40 is: 186,598.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,028.80 : 423,140.40 = 124,370.40 : x
  2. Step 2: Convert to fraction form
    282,028.80/423,140.40 = 124,370.40/x
  3. Step 3: Cross multiply
    282,028.80x = 423,140.40 × 124,370.40
  4. Step 4: Simplify right side
    282,028.80x = 52,626,140,804.16
  5. Step 5: Solve for x
    x = 52,626,140,804.16/282,028.80
  6. Step 6: Final answer
    x = 186,598.46

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1.5x scale

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.