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Finding the Fourth Proportional to 310,071.39, 427,893.08 and 174,106.41

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Solution

The fourth proportional to 310,071.39, 427,893.08 and 174,106.41 is: 240,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,071.39 : 427,893.08 = 174,106.41 : x
  2. Step 2: Convert to fraction form
    310,071.39/427,893.08 = 174,106.41/x
  3. Step 3: Cross multiply
    310,071.39x = 427,893.08 × 174,106.41
  4. Step 4: Simplify right side
    310,071.39x = 74,498,927,152.11
  5. Step 5: Solve for x
    x = 74,498,927,152.11/310,071.39
  6. Step 6: Final answer
    x = 240,263.79

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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.