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Finding the Fourth Proportional to 84,000.10, 115,920.15 and 46,274.35

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Solution

The fourth proportional to 84,000.10, 115,920.15 and 46,274.35 is: 63,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,000.10 : 115,920.15 = 46,274.35 : x
  2. Step 2: Convert to fraction form
    84,000.10/115,920.15 = 46,274.35/x
  3. Step 3: Cross multiply
    84,000.10x = 115,920.15 × 46,274.35
  4. Step 4: Simplify right side
    84,000.10x = 5,364,128,782.18
  5. Step 5: Solve for x
    x = 5,364,128,782.18/84,000.10
  6. Step 6: Final answer
    x = 63,858.60

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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.