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Finding the Fourth Proportional to 112,335, 168,632.10 and 57,047.64

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Solution

The fourth proportional to 112,335, 168,632.10 and 57,047.64 is: 85,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,335 : 168,632.10 = 57,047.64 : x
  2. Step 2: Convert to fraction form
    112,335/168,632.10 = 57,047.64/x
  3. Step 3: Cross multiply
    112,335x = 168,632.10 × 57,047.64
  4. Step 4: Simplify right side
    112,335x = 9,620,063,333.24
  5. Step 5: Solve for x
    x = 9,620,063,333.24/112,335
  6. Step 6: Final answer
    x = 85,637.28

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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.