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Finding the Fourth Proportional to 191,038.79, 286,483.11 and 64,644.23

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Solution

The fourth proportional to 191,038.79, 286,483.11 and 64,644.23 is: 96,940.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,038.79 : 286,483.11 = 64,644.23 : x
  2. Step 2: Convert to fraction form
    191,038.79/286,483.11 = 64,644.23/x
  3. Step 3: Cross multiply
    191,038.79x = 286,483.11 × 64,644.23
  4. Step 4: Simplify right side
    191,038.79x = 18,519,478,621.54
  5. Step 5: Solve for x
    x = 18,519,478,621.54/191,038.79
  6. Step 6: Final answer
    x = 96,940.94

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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.