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Finding the Fourth Proportional to 93,356.15, 128,826.36 and 53,064.32

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Solution

The fourth proportional to 93,356.15, 128,826.36 and 53,064.32 is: 73,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356.15 : 128,826.36 = 53,064.32 : x
  2. Step 2: Convert to fraction form
    93,356.15/128,826.36 = 53,064.32/x
  3. Step 3: Cross multiply
    93,356.15x = 128,826.36 × 53,064.32
  4. Step 4: Simplify right side
    93,356.15x = 6,836,082,547.34
  5. Step 5: Solve for x
    x = 6,836,082,547.34/93,356.15
  6. Step 6: Final answer
    x = 73,225.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.