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Finding the Fourth Proportional to 188,547.23, 260,188.53 and 103,663.64

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Solution

The fourth proportional to 188,547.23, 260,188.53 and 103,663.64 is: 143,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,547.23 : 260,188.53 = 103,663.64 : x
  2. Step 2: Convert to fraction form
    188,547.23/260,188.53 = 103,663.64/x
  3. Step 3: Cross multiply
    188,547.23x = 260,188.53 × 103,663.64
  4. Step 4: Simplify right side
    188,547.23x = 26,972,090,106.05
  5. Step 5: Solve for x
    x = 26,972,090,106.05/188,547.23
  6. Step 6: Final answer
    x = 143,052.17

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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.