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Finding the Fourth Proportional to 190,894.80, 286,342.20 and 57,795.60

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Solution

The fourth proportional to 190,894.80, 286,342.20 and 57,795.60 is: 86,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,894.80 : 286,342.20 = 57,795.60 : x
  2. Step 2: Convert to fraction form
    190,894.80/286,342.20 = 57,795.60/x
  3. Step 3: Cross multiply
    190,894.80x = 286,342.20 × 57,795.60
  4. Step 4: Simplify right side
    190,894.80x = 16,549,319,254.32
  5. Step 5: Solve for x
    x = 16,549,319,254.32/190,894.80
  6. Step 6: Final answer
    x = 86,693.40

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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.