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Finding the Fourth Proportional to 310,058.40, 465,166.80 and 99,698.40

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Solution

The fourth proportional to 310,058.40, 465,166.80 and 99,698.40 is: 149,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,058.40 : 465,166.80 = 99,698.40 : x
  2. Step 2: Convert to fraction form
    310,058.40/465,166.80 = 99,698.40/x
  3. Step 3: Cross multiply
    310,058.40x = 465,166.80 × 99,698.40
  4. Step 4: Simplify right side
    310,058.40x = 46,376,385,693.12
  5. Step 5: Solve for x
    x = 46,376,385,693.12/310,058.40
  6. Step 6: Final answer
    x = 149,573.07

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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.