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Finding the Fourth Proportional to 105,095.68, 145,020.16 and 60,398.08

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Solution

The fourth proportional to 105,095.68, 145,020.16 and 60,398.08 is: 83,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,095.68 : 145,020.16 = 60,398.08 : x
  2. Step 2: Convert to fraction form
    105,095.68/145,020.16 = 60,398.08/x
  3. Step 3: Cross multiply
    105,095.68x = 145,020.16 × 60,398.08
  4. Step 4: Simplify right side
    105,095.68x = 8,758,939,225.29
  5. Step 5: Solve for x
    x = 8,758,939,225.29/105,095.68
  6. Step 6: Final answer
    x = 83,342.52

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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.