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Finding the Fourth Proportional to 191,775.60, 287,663.40 and 188,495.10

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Solution

The fourth proportional to 191,775.60, 287,663.40 and 188,495.10 is: 282,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,775.60 : 287,663.40 = 188,495.10 : x
  2. Step 2: Convert to fraction form
    191,775.60/287,663.40 = 188,495.10/x
  3. Step 3: Cross multiply
    191,775.60x = 287,663.40 × 188,495.10
  4. Step 4: Simplify right side
    191,775.60x = 54,223,141,349.34
  5. Step 5: Solve for x
    x = 54,223,141,349.34/191,775.60
  6. Step 6: Final answer
    x = 282,742.65

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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.