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Finding the Fourth Proportional to 310,085.40, 465,128.10 and 240,101.40

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Solution

The fourth proportional to 310,085.40, 465,128.10 and 240,101.40 is: 360,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,085.40 : 465,128.10 = 240,101.40 : x
  2. Step 2: Convert to fraction form
    310,085.40/465,128.10 = 240,101.40/x
  3. Step 3: Cross multiply
    310,085.40x = 465,128.10 × 240,101.40
  4. Step 4: Simplify right side
    310,085.40x = 111,677,907,989.34
  5. Step 5: Solve for x
    x = 111,677,907,989.34/310,085.40
  6. Step 6: Final answer
    x = 360,152.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.