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Finding the Fourth Proportional to 191,339.36, 287,009.28 and 91,476.08

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Solution

The fourth proportional to 191,339.36, 287,009.28 and 91,476.08 is: 137,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,339.36 : 287,009.28 = 91,476.08 : x
  2. Step 2: Convert to fraction form
    191,339.36/287,009.28 = 91,476.08/x
  3. Step 3: Cross multiply
    191,339.36x = 287,009.28 × 91,476.08
  4. Step 4: Simplify right side
    191,339.36x = 26,254,483,858.02
  5. Step 5: Solve for x
    x = 26,254,483,858.02/191,339.36
  6. Step 6: Final answer
    x = 137,214.23

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1.5x scale

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.