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Finding the Fourth Proportional to 105,320.39, 145,344.93 and 62,903.39

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Solution

The fourth proportional to 105,320.39, 145,344.93 and 62,903.39 is: 86,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,320.39 : 145,344.93 = 62,903.39 : x
  2. Step 2: Convert to fraction form
    105,320.39/145,344.93 = 62,903.39/x
  3. Step 3: Cross multiply
    105,320.39x = 145,344.93 × 62,903.39
  4. Step 4: Simplify right side
    105,320.39x = 9,142,688,816.31
  5. Step 5: Solve for x
    x = 9,142,688,816.31/105,320.39
  6. Step 6: Final answer
    x = 86,808.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.