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Finding the Fourth Proportional to 191,317.60, 286,846.80 and 97,746.40

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Solution

The fourth proportional to 191,317.60, 286,846.80 and 97,746.40 is: 146,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,317.60 : 286,846.80 = 97,746.40 : x
  2. Step 2: Convert to fraction form
    191,317.60/286,846.80 = 97,746.40/x
  3. Step 3: Cross multiply
    191,317.60x = 286,846.80 × 97,746.40
  4. Step 4: Simplify right side
    191,317.60x = 28,038,242,051.52
  5. Step 5: Solve for x
    x = 28,038,242,051.52/191,317.60
  6. Step 6: Final answer
    x = 146,553.39

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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.