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Finding the Fourth Proportional to 93,389.01, 128,860.71 and 52,547.45

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Solution

The fourth proportional to 93,389.01, 128,860.71 and 52,547.45 is: 72,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,389.01 : 128,860.71 = 52,547.45 : x
  2. Step 2: Convert to fraction form
    93,389.01/128,860.71 = 52,547.45/x
  3. Step 3: Cross multiply
    93,389.01x = 128,860.71 × 52,547.45
  4. Step 4: Simplify right side
    93,389.01x = 6,771,301,071.39
  5. Step 5: Solve for x
    x = 6,771,301,071.39/93,389.01
  6. Step 6: Final answer
    x = 72,506.40

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1.5x scale

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.