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Finding the Fourth Proportional to 93,114.60, 139,707.74 and 43,220.20

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Solution

The fourth proportional to 93,114.60, 139,707.74 and 43,220.20 is: 64,846.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,114.60 : 139,707.74 = 43,220.20 : x
  2. Step 2: Convert to fraction form
    93,114.60/139,707.74 = 43,220.20/x
  3. Step 3: Cross multiply
    93,114.60x = 139,707.74 × 43,220.20
  4. Step 4: Simplify right side
    93,114.60x = 6,038,196,464.35
  5. Step 5: Solve for x
    x = 6,038,196,464.35/93,114.60
  6. Step 6: Final answer
    x = 64,846.94

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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.