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Finding the Fourth Proportional to 293,002.40, 439,503.60 and 105,970.16

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Solution

The fourth proportional to 293,002.40, 439,503.60 and 105,970.16 is: 158,955.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,002.40 : 439,503.60 = 105,970.16 : x
  2. Step 2: Convert to fraction form
    293,002.40/439,503.60 = 105,970.16/x
  3. Step 3: Cross multiply
    293,002.40x = 439,503.60 × 105,970.16
  4. Step 4: Simplify right side
    293,002.40x = 46,574,266,812.58
  5. Step 5: Solve for x
    x = 46,574,266,812.58/293,002.40
  6. Step 6: Final answer
    x = 158,955.24

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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.