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Finding the Fourth Proportional to 74,928.92, 103,294.64 and 46,229.40

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Solution

The fourth proportional to 74,928.92, 103,294.64 and 46,229.40 is: 63,730.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,928.92 : 103,294.64 = 46,229.40 : x
  2. Step 2: Convert to fraction form
    74,928.92/103,294.64 = 46,229.40/x
  3. Step 3: Cross multiply
    74,928.92x = 103,294.64 × 46,229.40
  4. Step 4: Simplify right side
    74,928.92x = 4,775,249,345.99
  5. Step 5: Solve for x
    x = 4,775,249,345.99/74,928.92
  6. Step 6: Final answer
    x = 63,730.39

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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.